@article{DAN_1958_120_2_a3,
     author = {A. D. Lyashko},
     title = {The convergence of {Galerkin} type methods},
     journal = {Doklady Akademii Nauk},
     pages = {242--244},
     publisher = {mathdoc},
     volume = {120},
     number = {2},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1958_120_2_a3/}
}